Question

1)-0.2а²bc⁹*7ab⁷c¹⁰ ; 2) (-1\4х³у)³ ПАМАГИТЕ ПАЖАЛУСТА

Answer 1

Объяснение:

1. -1,4а^3b^8c^19

2.-1/64x^9y^3

Answer 2

1. To simplify the expression (-0.2a²bc⁹) * (7ab⁷c¹⁰), we can multiply the coefficients and combine the variables with the same base by adding their exponents.

The coefficient of the expression is (-0.2) * 7 = -1.4.

For the variables, let's multiply the bases (a, b, c) and add the exponents: a² * a = a^(2+1) = a³ b * b⁷ = b^(1+7) = b⁸ c⁹ * c¹⁰ = c^(9+10) = c¹⁹

Putting it all together, the simplified expression is: -1.4a³b⁸c¹⁹

2. To simplify the expression (-1/4 * x³ * y)³, we can cube the whole expression by raising each component to the power of 3.

The cube of -1/4 is (-1/4)³ = -1/64.

For x³, we have (x³)³ = x^(3*3) = x⁹.

For y, we have (y)³ = y^(1*3) = y³.

Putting it all together, the simplified expression is: (-1/64) * x⁹ * y³.